Skiving-machine.



E. NALL L W. C. TYLER.

SKIVING MACHINE.

APPLIUATIOH ULEB APR.1\,1914.

1,116,101y Patented Nov,3,1914.

SHBETSSIIEET 1.

Elim l.

lwuculom EDWARD MALL WILIJAM QTYLER.

E. NALL 6a W. C. TYLER.

SKIVING MACHINE.

APPLICATION L1IA:I)APR.11,1914.

Patented Nov. 3, 1914.

5 SHBETS"SIIEBT 2.

Wou/142cm NALL.. AND VVILUAM VYLEFQ.

Hom ma] E. NALL a W. C. TYLER.

SKIVING MACHINE.

APPLloATIoN FILED 111111.11, 1914.

Patented Nov. 3, 1914.

Lllgl,

5 SHEETS-SHEET 3.

lmuamtow EDWARD NAL.|

I 2E AN D WILLIAM TYLER.

E. NALL L W. C. TYLER. SKIVING MACHINE.

Avmmngllozw FILED APR, 11, lm.

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Patented Nov. 3, 1914.

E. NALL & W. C. TYLER. SKIVING MACHINE.

APPLIOATION FILED 111111.11. 1914.

1 1 1 6, 1 O1 Patented Nov. a, i914.

5 SHEET ES-SHEET fr.

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loro occupy less space while being v ell' 'ent'. The rolls lil and 17 are receive a heavy belt i8 which nd both rollers and over 'the face of the table 3 and downwardly he pairs ol legs l. and Q and beiaoe of the table B. rElie ad.-

lQ constitute means for i the position of the roller ll and to the latter when shifted away from i all times under tension. ted on the end G of" .folie table il is a ll) a ad on the end 5 oit the tableis a 20. .llie lower central portions of f enlils oi the ineinbers 5 and 6 are eut away as shown in l i and l0 te receive f l, bearings. lriiounted in these l'iearings is. a driving shaft 2l. on 'the right end oi f* are tight and loose belt-pulleys by i motion is communicated to the shalt.

e lett et' the spur-gear and on the lett tace of the enddforminp; .ier e of the table 3 is a bracket 25 beara journabbearing in which is mounted :2.6. fiplinod on. the sha-ft is the oie member 2f? et a squarejaWed l see and which is shifted lonn 'or the shaft 26 through the a clutching lever Q8 provided ring off the Clutch member of the lever ie :tuleruined on. a n bracket attaohed to an inelosl 33 :seeured to the end 5 of the loosely mounted on the shaft 9,6 Y -1 air 31% the hub olf which eons'tinipieimnitary clutch member which to inter-engage with the clutching;p 'uber il" when the latter is shifted. on the shaft 1G is a large spin-gear iol; adapted to interniesli with the on lf-l and be revolved by it W..1enever ng'einent is established between ilfrnibers 27 and 3.3. liifsedly niouni'iod shalt 26 is a large spur-gear l? which pted to interinesh with the pinion lt will be noted 'troni the gearing); d that the speed oll rotation ot' the ed on the upper tooo ol the table :l iraino denominated generally by the numeral 38 and consisting ol' owls or beads ill) and 40 the lower portions ot which are adapted to seat on the upper i'aeis ol' the table 3 and near to the ends their-oi". rthe upper portions ot these heads Si!) and Llll are prrwided with coats il I'or a purpose be later described. The heads and Lit" are provided on their rear faces,

fifi

bearing; 20 is a large spur-gear the in Fig". l, With projecting* apertured lugs l2 Yfor a purpose to be later described. Extending; between the heads 39 ande() and longitudinally ot the table 3 are a pair el integral bars 43 arranged in parallelism and with their opposing 'faces vertical and pro vided with inwardly-projecting oppositelyarranged ribs 44, 'lfllese bars, best shown in Fig'. Ll, constitute supporting and guiding means 'l'or the carriages which are adapted to carry the skivingr tools. Mounted on the seatsdl on the heads 39 and 40, are a pair ot journal bearings 45 and 46 in which is mounted a rotatable shaft l? held against longitudinal movement by the collars i8 and this shaft is provided with a longitudinallyextending key 15). The shaft at the left oi' the bearing #l is provided with a spur-gear 5i) which is adapted to intermesh With a spur-gear 5l mounted on a stub-shaft 52 on, a lug` on the head 39. The Spur-gear 51 intel-meshes with the spur-gear 23 so that as the latter revolve in unison With the driving shaft the shaft 47 is rotated at great speed through the described gearine". Also mounted on the seats 4l of the heads 39 and l0 are journal-bearings for a shaft 53 parallel Awith. the shaft 47 and provided with a longitndinally-extending key for a purpose to be later described. The shaft 53 bears at its lett end a sprocket Wheel 54C. Mounted on a bracket 55 which is secured to the end l@ oit the table 3 is a stub-shaft 56 on which is mounted a sprocket Wheel 57 and also a spungear pinion 58 which is adapted to interinesh with the gear 36 so that when the latter is rotated, motion is Communicated troni said l@rear 3G to the pinion 58 and from thence to the sprocket Wheel 57 and from thence to the gear 5ft by means of a sprocketehain 59, to thereby cause rapid rotation ol the shaft 53. (ln the upper iaoe ot' the table ilearwardly of the heads 39 and d() are aperture lugs, 106 and they are so placed as to lnp the sides of the lugs 4t2 on the heads 39 and Ll0 and pins 107 are passed through the alined efi'ertures so as to pivotally connect thorn, the pins constituting.; pivots for perinittiin;` the entire frame, denominated as 258, to be swung rearwardly so as to lrive aeeess to the upper face of `the belt 18 Wllendesii-ed.

lflie sliirine' tools are carried -by plurality el carriages, that is to say, each Carriage marries a single slrivine; tool and these car ringen are adj usted longitudinally of the derioe so as to enable them Ito out strips oi niatei-inl et different Widths and as all ot the carriages and skiring' tools are similar a de-I soription ot one is believed to be sulieient.

The skiving-tool carriage consists ol a body portion 60 which is positioned between the longitudinal bars 43 and is provided in the lateral faces thereof with grooves to receive the ribs /l/l which constitute slides for shifting the carriage. Portions of the upper face 61 and lower face 62 of the body portion 60 ot' the carriage are inclined and are in parallelism for a purpose to be later described. Secured to the upper horizontal face of the body' portion 60 of the carriage is a lower member 63 of a journal box. which is provided with a cap 64 (see Fig. 3) and in the box is mounted a hub 65 which is provided with a `groove to receive the key L t9 on the shaft 47, so that the hub 65 revolves in unison with the shaft. The end ol. the hub 65 bears a beveled gear 66. Mounted in suitable bearings 67 and 68 in the upper and lower faces 61 and 62 of the body portion 60 of the carriage, is a shaft 69 inclined at an angle with respect to the vertical axis of the device and provided at its upper end with a bevel-gear 70 intermeshing with the bevelgear 66. The lower end of the shaft 69 is provided Ywith a skiving tool 71 which con- .sists of a thin sheet oit metal in circular form and with the periphery thereof constituting a cutting edge for the skiving operation.

It will be seen that the rotation of the driving shaft will cause an extremely rapid rotation of the shaft 47 and a 0rreater speed ot rotation ot the skiving tool t so that the skiving or beveling operation ol a piece of material fed over the belt 18 is easily accomplished.

ln order to hold the material to be acted upon, the following mechanism is employed,

f reference being directed to Figs. 3, 4, 5 and 6: Secured to the body portion 60 ot the carringe are a air of projecting brackets 72 and 73 oppositely disposed to each other and in alinement. The bracket 72 is provided with a pair of ears 74 having alined apertures in which is mounted a sleeve 75 provided with a groove to receive the key shaft 53 and ixedly mounted on the sleeve 75 is a lianged pulley 76 s0 that as the shaft 53 is revolved by the "mechanism already described, the pulley 76 will be revolved. rlhe bracket 7 3 is provided with a pair of hori Zontal arms 77 in which are alined slots 78 constituting bearings. Adapted to be mounted between the arms 77 is a yoke (see Fig. 6) consisting of a pair of bifurcated arms 79 provided with apertures to receive a shaft 80 which also extends through the slots 78 in the arms 77. The rear portion of the voke is provided with a stem 81 which is freely received in a socket 82 the bracket 73 and the yoke 79 being constantly forced outwardly through the medium oa resilient element 83 fora purpose to be later described. Mounted on the shaft 80 is a fiangedpulley tiel'.

'lhc opposite sides of the lower portion of the body member 60 of the carriage are provided with oppositcly-disposed openings 85 whichare positioned below the centers oi.

the pulleys 76 and 84 and in these two openings are inserted the stem ends S6 of housings 87 generally right-angular in, formation and bearing in the side walls 88 thereof a pair of slotted openings 89 constitutingr bearings for the pivots 90 ot flanged pulleys 91. Within the housing' are mounted yokes identically similar to those shown in Fig. 6 and designated by the numerals 79, being held resiliently in position in the same manner except that the springs 4force the rolls 91 downwardly instead of laterally, as is the case with respect to the rolls 84. The main.

portions of the housings 87 are provided on their inner faces with inclined walls 92 whicl. are adapted to seat against the outer lateral faces oi the two bars 4.3. A belt 93 is passed around the pulleys 76, 84 and 91 of each carriage and motion is communicated to the beltv through the medium of the shaft 53 rotating the sleeve 7 5. The two rollers 91 'will bo positioned in transverse horizontal alinenient and slightly above th'e upper face of the main belt 18 and the material to be acted upon .by the skiving tools 71 will pass i`r. i'\\'aidly in unison with the belt 18 and be held ir. rictional engagement :therewith through the medium of the belts 93.

Experience has demonstrated that the side thrusts of the skiving knife 71, has a tendency to distort the material acted upon7 andhcnce, in order to hold it against lateral movement, I employ a pressure roll mounted as follows: Secured to the left lower Jface of the body portion 60 of each carriage is a bracket 95 provided with a air of bearings 96 in which is vertically shiftably mounted a shaft 97 which carries a cross-pin 98 above which is a coiled spring 99 the normal tendency of which is to force the shaft downwardly. In order to prevent theshaft 97 from rotating it is provided with one or more cross-pins 100 which run in suitable slots 101 in the bearings 96. 'Secured to the lower end of the shaft 97 is a horizontal arm 102 the median portion of which is upwardly-inclined terminating; in a downwardlyturned end 103. The median portion is bi- -turcated with the 'sides separated from one another and united with the portions 102 and 103. Mounted in the bifurcated portion of the member 102 on a shaft 104 is a pressure roller 105 normally adapted to be forced downwardly against the upper face ot the belt 93 through the medium of the spring 99. It will be noted that the roller 105 forces the belt 93 downwardly at a point exactly opposite to the center of the skiving knife 71.

In operation, the clutch lever is shifted to disengage the clutching members 27 and 215 to prevent revolution of the gear 36. Motion is communicated in the usual way by a belt applied to the driving pulley 2 2. This causes rapid revolution of the skiving knives "Tl, as has already been described. ".llhe carriages which carry the skiving knife are spaced apart a desired distance to provide strips having skived edges of the required Width, and While only two of the carriages and skiving knives are shown in Fig. 2, their number may be increased as desired, and if it is desired to discontinue the operation of any of them they are shifted to the right in Fig. 2 until the hubs 65 of the bevel gears 66 have passed beyond the key .fl-,9. The skiving knives are so geared that they run with the cut so their working edges revolve in the same direction as die belts 18 and 93, which is from the riOht to the left in Fig. l. After the knives have been started, the clutch members are thrown into clutching engagement which causes the belts 18 and 93 to move in unison in the same direction and approximately at the saine speed.l A Wide strip ot prepared material. is then :ted over the belt 18 and under the several belts 93 and duringn the passage of the material over the belt 18 the slriving knives divide the broad strip olf material into a plurality of narrow strips 'with the edges thereof skived at desired inclination which inclination is controlled by the inclination given to the sliiring knives 7l.

Experience has demonstrated clearly' that the device operates with great accuracy and great speed and edects a saving in time and labor besides insuring more accuracy in thc operation of skiving, and produces a slrived edge of greater width than is possible when the same operation is done by hand.

-llfe claim:

`l, A striving machine embodying a pair oit belts engaging opposite sides of the material to be slrived and moving in the same direction at the same speed, and slriving tools `l'or making oblique cuts in the material. said cuts extending in the same direction as the belts and also in parallelism with one another.

2. il. slrivinig machine comprising a lower belt constituting a supporting platform, 'a belt positioned above said first belt with portions thereof in approximate parallelism therewith, said belts beine,nil spaced apa-rt sufficiently to permit the passage of the material between thcmfmeans for moving' the Working portions of said belts in the saine direction, 'and slriving' tools lor making oblique cuts in the material, said cuts extending," in thesamedirection as the belts and also in parallelism with one another.l

3. il skiving machine comprising a supporting table, a driving and an idler roll mounted on opposite sides thereof, a belt on said rolls arranged to move overthe upperlace of said table, :i second belt mounted above said lil-st belt and with the Working )ortion thereof adapted to ass in el "1.;

f Misael proximity to said lirst belt to thereby provide a space lor the passage of the material to bc slrivcd, and a pair ot sliving tools mounted `l-or adjustment longitudinally oli said machine and adapted to divide the ma.-` terial into a series of strips havinga parallel oblique edges.

4l. il slriving inachinecoinprieing a supporting table, a drivinp;` and an idler roll on opposite sides thereof, a belt around said rolls arraneed to pass over the upper surtace or said@ table, a shiltahle carriage above said table, a belt on said carriage adapted to have its working portion move in unison with and in the saine direction as said irst belt, saidV belts being spaced apart sur1- liciently to permit the passage of material between them, and rotary slrivingg-tools arranged to maire parallel obliqne entf through said material in snch as to divide the material into a 'series of strips having,l parallel oblique edges. l

A slriving machine embodying' a sup porting table, a driving roll on one side of said table, an idler roll on the opposite side thereof, means tor rotating,P said driving roll, a belt around said rolls the Working portion at which extends over the top ci" said table, a carriage moiuite above said table, a plurality of rolls on said carriage, a belt extending around saidA rolls, a por tion ol said rolls being` positioned to cause said belt to pass in close proximity to the upper surface or' said. lirst belt, means tor movingl said belt, said means being adapted to cause the portion of the belt adjacent the lower belt to move in unison therewith, a. rotatable shaft supported by said carriage, and an inclined skiving tool rota: i

by said shaft, said slriving tool being arranged 'to make parallel oblique cuts through said i iaterial in such manner as 'to divide the ,inaterial into a series ci, strips having allel oblique edges.

6. A slriving niachi e enitodyingiu a supporting table, a dri v. f all .on one side 'iia said table, an idler roll on the opposite side thereof, means rotating said driving roll, means to interrupt the rotation of said drie ing roll, a belt around said rolls the' Workin portion of which extends over the top ol' said table, a carriage mounted above said table, a plurality'oi2 rolls on said carriage, a belt extendin around said rolls, portion ot said rolls being positioned to said belt to pass in close proximity to the upper surface of said lirst belt, ineens tor moving said belt, said means beingn adapted to cause the portion of the belli adjacent the lower belt to move in nnisin therewith, and a slnvingn tool adapted to engage a strip et nia-- terial supported by said lower belt at a point near to Where said material is en gaged by said ripper belt,

'1/1 i :driving machine embodying a sup jjzmrting table, a drivingr roll on one side of said table, an idler roll on the opposite side thereof, .means for rotating said driving roll,` a belt around said rolls the working portion ol .vhich extends over the top of said table, a carriage shiftable longitudinally of said table, plurality of rolls on said carriage, a belt estendintT around said rolls, a portion of said rolls being positionedto cause said belt to pass in close proximity to thev upper surface of said first belt, means for moving said belt, said means being adapted to cause the portion of the belt adjacent the lower belt to move in unison therewith, and a striving tool adapted to engage a strip of material supported by said lower belt at a point near to Where said material is engaged by said upper belt.

8. A skiving machine comprising a supporting table, rollers mounted on opposite sides of said table, a belt passing around said rollers and over the top of said table, a shaft on which one of said rollers is mounted, a gear on said shaft, a driving shaft supported by said table, mechanism for transmitting motion from said driving shaft to said gear for moving said belt, a carriage positioned above said table and shiftable longitudinally thereof, a plurality 'of rolls carried by said carriage two of which are positioned with their periphcries near to the up er face of said be t',a belt on said rolls, belt beivng adapted when moved to pass in close proximity to said iirst belt leaving, how@ ver, a space through which material to be shived may pass, a skiving tool carried by said carriage and arranged to engage material. near where it is engaged by said belts, a sli-att extending above said table, means Carried by said carriage engaging said shaft for transmitting motionffrom said shaft to said shivi q tool, and means for transmitting motion ian. said driving shaft to said lastmentioned shaft.

9. A skvini; machine comprising a table, a pair of rolls mounted on opposite sides thereof, a belt passingr around said rolls and over the top of said table to constitute a supporting platform for the material, a driving shaft supported by said table, means for transmitting motion from said driving shaft to one of said rolls for moving said belt, a frame mounted on said table .comprising a pair of spaced parallel bars extending across lthe median portion of said table and over said belt, said bars constituting slides, a carriage supported `by saidy slides, a pair of rotatable shafts mounted on said frame, means for' transmitting' motion from said driving shaft to said shafts', a plurality of rollers on saidrarriage tivo otwhieh are ined thereon near said belt, a belt runo'n said rolls with a portion thereof adapted to engage adapted to pass close to said first belt, said portion beingr adapted to move in unison with said lirst belt, means to transmit motion from one otl said shafts to said belt, a sltiving tool adapted to engage the material at a point Anear where said i'nateri'al is en gagged b v said bells, and means to transmit motion from the other shaft in said frame to said skiving tool.

l0. A .driving machinecomprising a supportingr table, a belt adapted to move progressively over the upper surface thereof to constitute a movable materialsupporting platform, a Aframe mounted on said table and extendingI over said platform, a portion of said ,trame constituting slides, a carriage mounted on said slides, apair of shafts mounted on said frame above said carriage, a slriving tool carried by said carriage, means Connecting said skiving tool with one shaft for rotatingr it, a plurality of rollers on said carriage, a belt on said rollers a portion of which is adapted to engage the material on said platform, one of said rollers being splined on the other shaft, a driving shaft supported by said table, and means to communicate motion' from said driving; shaft to vsaid first-mentioned shafts, and means for communicating motion from said driving shaft to said first mentioned belt lor Tnoving it.

lll. A slnvmg machine comprising a supporting table, a belt adapted to move pro' gressively over the upper surface thereof to constitute a movable material-supporting platform, a frame mounted on said table above said platform a portion of which constitutes slides, a carriage mounted on said slides, a shaft supported by said carriage and carrying a slriving tool adapted to engage the material on said platform, a bevel-gear on the shaft of said skiving -tool, a Vpair of shafts mounted on said frame above said carriage, a bevel gear splined on one of said shafts and adapted to engage the bevel-gear on said tool-shaft for transmitting motion from the shaft to the tool irrespective of the longitudinal position of said carriage, a plurality of rollers on said carriage, one of which is splined on the other shaft, a belt running on said rollers a portion of rwhich is the upper face of material on said platform near the Working edge of said skiving tool, a driving shaft, and means to transmit motion therefrom to the shafts on said frame and to said first mentioned belt for actuating them all simultaneously.

1 2. A sltiving machine comprising a supporting table, a belt adapted to move progressively over the upper surface thereof to constitute a movable imiterial-supporting platform, a frame mounted on said table above said plattform a portion of which constibutes slides, a carriage mounted on Said siies, :i eiliiifimp" tool on said carriage miapted toengage line material on said piooim and having a shaft? a ioeVe-gem' on the 5 of said siiiving tool, a pair of shafts monniefi ou smid iframe above Said cam'iiogey o, bevel-gear spiiioed on one of said Shah-e and adapted iso engage Ehe bevel-gear on ooiehat for tifuionitting motion from he lo sha to the tool ifespeotive of the iongiw dinal ooswtioii of said Carriage, a plurality of zoieis, one of saici rollers being; ou'f 'Wai-diy spingpressed izo constitute a bei? tigicerlera a beit running on said i'oiie portion of which is ufiapted to engage the uppe face oi muteiai on said piofoim near #die Working edge of Said Skiving tooi, a driving shaft, and means to trzmsmi mofsion therefrom to the shafts on said 'fi-miie 2o and io said ls' mentioned beit for actu Mino; 'them all sii'nuitaneousiy.

lo. A skiving machine Lomloiisin?n sup porting table, a neit adaped 'izo me progi'essiveiy over the upper surface iLeieoi: to 25 constitute a movabie materiali-supporing piatorm, o frame hinfred to said ltable to permit it to be. swung away from Said keit, a, portion of said frame constituting slides, a ofu'iiuge mounted on said Slides, a skiving Si) ooi mounted on said carriage for engaging the material on said piatorm, a, piuaity of rollers on Said carriage, a beit iunning on said reliefs a portion' of which engages the upper surface of the material on said plot- 35 form, a pair of shafts on said from@ one of which has connection with said ski'ving tool and the other oeizoofy in operative Connection with one of the roiiel's which bears ihe seoond beh; foi" moving it, o. drii'f'ing Sheff; and 1-0 means to fsmnfsmt motion from said. divng Seid carriage, a bei?, `moimi/eri shaft to Suid rs: mentioned bei' foi ing 1in.

M. Si sk iving machine Comprising table, of oei adapted io move Y'eiy over' 4he upper surface them-L. eonsmtuie a, moimbie ii'lateiiii-Sup'fno pint-:foray a frame mounted above om. ami. piif'oed o said obie "to pei'mi: ii swing "o expose 'the maerizii on. said.

eziii'iag'e on Said from@ o Skiviog @ooi on s; finge for engaging the nippel' su Suid maeiial meer the Working o skiving tooi and Bemis for comu motion to said belts and ekiv'ing ooi.

l5. A., siiviug vmachine comprieiog ou@ poiiiig mbk, a bei; adopted to move gre" cimsiiuute :i movable nmeriai-sup plaifoii'o, :iiyama mouneo obofe so und ii"v' ted o said table to peimit Swim to expoee im uwmsneio on soif. :i oairnge on said freine, :i skiviog said carriage? beit mounte on sfu* ringo engaging she upper surface o* material new the 'Working edge of smid si' ing ooi, s1 Ipi'eoeuie roiiei adapted izo a poi'ion' of the belf- Carried by Suid 3e against @the muteiiz. 243 a point' @o said mnz'gerial is engaged by. Said. i tool, :mol means for comimmieai'ning moiofi to Said boite md skiviig tool En estimony whereof We have he" setou hands in presence of 'two IUC/omi.A witnesses.

EDW'LRD WALL, `WILLL l wWimesses I ROSE MIEUX, ANNA J. GXLHQOLY. 

